Green Synthesis of Silver Nanoparticles Using Momordica Charantia Fruit Extracts

Abstract

The synthesis of nanoparticles is in the spotlight in modern nanotechnology. In recent years, the development of competent green chemistry methods for synthesis of metal nanoparticles (NPs) has become a main limelight of researchers. Biological synthesis of nanoparticles using plant extract is currently under exploitation. The first time in this paper we have reported the green synthesis of silver nanoparticles (AgNPs) by reduction of silver nitrate, using fruit extracts of Momordica charantia (bitter melon); commonly found plant in south East Asia. The reaction process for the synthesis of silver nanoparticles is simple, cost-effective, novel, rapid and eco-friendly route using fruit extract of M. charantia plant, which acted as a reducing and stabilizing agent simultaneously at room temperature. Formation of the nanosilver was confirmed by surface Plasmon spectra using UV-Vis spectrophotometer and absorbance peak at 440 nm. Different silver ion concentration and contact times were experimenting in the synthesis of silver nanoparticles. The prepared nanoparticles properties were characterized by UV-Vis.

Bio-Mediated Synthesis and Characterisation of Silver Nanocarrier, and Its Potent Anticancer Action

“…Based on the UV-vis results, an increased in the amount of GM peels powder and concentration of AgNO 3 increased the peak intensity of UV-vis spectra. This result suggests that higher amount of GM peels powder and concentration of AgNO 3 speed up the formation of AgNPs as more AgNPs were formed which is consistent with the previous result [48]. Red shift was observed due to the increase of interactions between GM peels extract and available silver ions, hence resulting in the increase of AgNPs size [49].…”

Biotic Process Dominated the Uptake and Transformation of Ag+ by Shewanella oneidensis MR-1

“…69 Another work also found that as the Ag + concentration increased from 324 to 585 mg L −1 , more nuclei with smaller sizes were found, while increasing the Ag + from 585 to 755 mg L −1 caused the growth of crystals around the nucleus with an increase in average particle size. 70 It has been suggested that an increase in Ag + concentration to some extent leads to an increase in the reaction rate, 71 which caused most Ag + to be consumed in the formation of nuclei and thus stopped the secondary reduction process on the surface of the preformed nuclei, resulting in the formation of smaller size particles. 72 AgNP Formation Mechanism by S. oneidensis MR-1.…”

Biofabrication of Ag Nanoparticles Using Bacteria, Plant Fungi and Algae and Their Applications in Clinical Gadgets

“…reducing watery silver nitrate (Varghese et al, 2015). Momordica charantia leaf extract used as a green source for both reductant and stabilizing in biosynthesis of Ag NPs (Nahar et al, 2015).…”